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Discussion Starter · #21 ·
NZXT

DF1202512RFLN

This fan came with the NZXT Beta Evo case.


Image: NZXT 1202512RFLN exhaust


Image: NZXT 1202512RFLN intake

NZXT fan specs

Link : http://rexususa.com/21225-9.html

Size: 120x25mm, 9 blades
Bearing: rifle
Speed: 1300
Airflow: 47 CFM
SPL: 25 dBA
Static Pressure: na
Features: Blue LED's

Results on the Megahalems:

Speed: 1170 RPM
CPU temp over ambient: 57.5c
SPL: 21 dBA
"Quiet at full volts, with blade sounds; clicks when undervolted through MB." But then, how often would we undervolt this fan?

Compare this fan with the Silverstone FN121.

In fact, the wholesaler says this fan's manufacturer number is FN-120.
 

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Discussion Starter · #22 ·
OKGear

Two fans that came in the grab bag. One has a big label and three wires. The other has a small label and two wires.


Image: OKGear big label - exhaust


Image: OKGear big label - intake


Image: OKGear small label, exhaust view


Image: OKGear small label, intake view

OKGear Big Label fan.

Link: http://www.coolerguys.com/garage29.html

OKGear Big Label (3-wire) fan specs

Size: 120x25mm, 7 blades
Bearing: sleeve
Speed: 1200
Airflow: 36 CFM
SPL: 27
Static Pressure: na

Results on the Megahalems:

Speed: 1525 RPM
CPU temp over ambient: 58c
SPL: 28.5 dBA

-----------------------------------------------------------------

Small Label (2-wire) fan.

Size: 120x25mm, 7 blades
Bearing: sleeve
Speed: na
Airflow: na
SPL: na
Static Pressure: na
Feature: two wires - no RPM reporter lead

Results on the Megahalems:

Speed: 1710 RPM (estimated by synchronizing another fan with it).
CPU temp over ambient: 55.5c
SPL: 31 dBA
"A hum and a rush of wind; fan got hot."

A pretty good effort. No wonder it got hot. Actually, this is a fan that barely ran when I first got it. I pulled the label open and gave it a drop of oil. The results you see above. If I feel like using it again I'll put in some more oil.
 

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Discussion Starter · #23 ·
Papst - or EBM Papst

4412FML


Image: Papst 4412FML exhaust


Image: Papst 4412FML intake

Link: http://www.ebmpapst.us/allpdfs/4400F.PDF

Papst 4412FML Specs

Size: 119x25mm, 7 blades
Bearing: ball
Speed: na
Airflow: 67.1 CFM
SPL: 32 dBA
Static Pressure: na
Feature: two wires - no RPM reporter lead

Results on the Megahalems:

Speed: 1785 RPM (estimated by synchronizing another fan with it).
CPU temp over ambient: 54c
SPL: 30.5 dBA
"Clatters."

Nasty clicks at low voltages.

----------------------------------

Papst 4312 MS

I wanted to test five-bladed fans.


Image: Papst 4312 MS exhaust


Image: Papst 4312 MS intake. Notice that the blades rotate clockwise. Papst has at least one other series of fans that rotate clockwise.

Link: http://www.ebmpapst.us/allpdfs/4300.PDF

Papst 4312 MS Specs

Size: 119x32mm, 5 blades
Bearing: ball
Speed: na
Airflow: 82.4 CFM
SPL: 39 dBA
Static Pressure: na
Features:

Results on the Megahalems:

Speed: 2190 RPM
CPU temp over ambient: 53.5c
SPL: 38 dBA
"Growls."

-------------------------------------------

EBM W2G110-AF45-19

Again, I wanted to test five-bladed fans. This fan looks to be an EBM model that predated Papst's acquisition of EBM.


Image: EBM W2G110-AF45-16 exhaust


Image: EBM W2G110-AF45-16 intake


Image: EBM W2G110-AF45-16 label

Link: http://www.performance-pcs.com/catal...ducts_id=24236

EBM W2G110-AF45-19 Specs

Size: 120x38mm, 5 blades
Bearing: ball
Speed: na
Airflow: 105.9 CFM
SPL: 45 dBA
Static Pressure: na
Features: metal fan; third wire is not an RPM reporter lead

Results on the Megahalems:

Speed: na (no 5-bladed fan fast enough to synchronize with it)
CPU temp over ambient: 50c
SPL: 45.5 dBA

Nasty clicks at low voltages.
 

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Discussion Starter · #24 ·
Rosewill

Rosewill RFX-120BL

Rosewill appears to be the house brand for New Egg. This fan is available for $8 with a fan controller. Unfortunately the fan controller can make some fans sound bad when undervolted. If you want the fan, just get it. This one has LED's in a very pretty sky blue.


Image: Rosewill RFX-120BL - exhaust view


Image: Rosewill RFX-120BL - intake view

Link:
http://www.newegg.com/Product/Produc...&Tpk=RFX-120BL

Rosewill RFX-120BL Specs

Size: 120x25mm, 7 blades
Bearing: ball
Speed: 1200 - 2200 RPM
Airflow: 43.5 - 87.5 CFM
SPL: 23.5 - 38.15 dBA
Static Pressure: na
Features: Blue LED's; fan controller

Results on the Megahalems:

Speed: 1950 RPM
CPU temp over ambient: 54c
SPL: 33.5 dBA

Not only pretty, but sings at full speed. When I did my 5-volt comparisons, my comment was "Sweet sound" at 24.3 dBA.

----------------------------------------

Rosewill RFA-120-BL

Not just a sleeve version of the RFX-120's. This one has blue LED's. I don't like the color as much as the LED's on the RFX.


Image: Rosewill RFA-120BL exhaust view


Image: Rosewill RFA-120BL intake view

Link: http://www.newegg.com/Product/Produc...82E16835200049

Rosewill RFA-120BL Specs

Size: 120x25mm, 7 blades
Bearing: sleeve
Speed: 2000 RPM
Airflow: 74.48 CFM
SPL: 29.28 dBA
Static Pressure: na
Features: Blue LED's

Results on the Megahalems:

Speed: 1700 RPM
CPU temp over ambient: 55c
SPL: 30 dBA
"Hum. Different colored LED's."
 

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Discussion Starter · #25 ·
Sanyo Denki

NOTE - Most San Ace fans are available only from industrial suppliers, and ship with bare wires. If you are not comfortable soldering wires or if you do not have tools for crimping pins, it would be best for you to buy San Ace fans only from regular computer parts retailers.

120x38mm fans

A note on model number: Start with 9G1212M101. The 9 represents a fan series. The G tells you it is a standard fan. The first 12 is the frame size in cm. The second 12 is the voltage. The L means Low speed, the M means Medium speed, the F is for Fast, the H is for High, the E may be for Extra High; there are also G, J and S speeds. The 1 tells you the fan is 38mm thick. I don’t know what the zero stands for. The 1 means there is a third wire for reporting RPM. The absence of a second -1 tells you that this fan has “ribs,†“closed corners,†or “installation tunnels.â€


Image: The edges of three San Ace 9G's


Image: Three San Ace 9G's

The left fan is a 9G1212H101 that has had its ribs cut. The center fan is a 9G1212E1011 that was manufactured without ribs. The right fan is a 9G1212G101 with ribs intact.

-----------------------------------------------

San Ace 9G1212M101

This is the little brother of the famous San Ace 9G1212H1011.


Image: San Ace 9G1212M101, intake & exhaust views

This is a 9G1212M101, with a 9G1212H101 to show what the intake side looks like.

Link: http://db.sanyodenki.co.jp/product_d...master_id=2464

San Ace 9G1212M101 Specs:

Size: 120x38mm, 7 blades
Bearing: ball
Speed: 1950 RPM
Airflow: 74 CFM
SPL: 32 dBA
Static Pressure: 4.0 mm H2O

Results on the Megahalem:

Speed: 1960 RPM
CPU temp over ambient: 52c
SPL: 35.5 dBA
“Growls.â€

Results on the Megahalem at 5v:

Speed: 810 RPM
CPU temp over ambient: fail
SPL: 16 dBA
“Quiet growling.â€

---------------------------------------

San Ace 9G1212H101

The famous one. The 9G1212H1011 differs from this one in that it does not have ribs, while the 9G1212H101 does. It’s easy enough to cut the ribs off, but that is not necessary with the Megahalems. I bought two of these.


Image: San Ace 9G1212H101, intake & exhaust views


Image: San Ace 9G1212H101, exhaust view


Image: San Ace 9G1212H101, intake view


Image: Megahalems and San Ace 9G1212H101 fans

Link: http://db.sanyodenki.co.jp/product_d...master_id=2477

US Vendor-1
US Vendor-2
UK Vendor

NOTE: I strongly recommend you get an -H1011 and not an -H101. I have given you links to vendors who will sell you fans with plugs and sleeving. I did all that myself, But buying the supplies requires care, and assembling it all requires tools.

San Ace 9G1212H101 Specs:

Size: 120x38mm, 7 blades
Bearing: ball
Speed: 2600 RPM
Airflow: 99 CFM
SPL: 39 dBA
Static Pressure: 6.6 mm H2O

Results on the Megahalems 12v (average):

Speed: 2500 RPM
CPU temp over ambient: 50c
SPL: 40 dBA

The important thing here is that this was the first fan to get down to 50c without sounding like a banshee.

Results on the Megahalems 5v:

Speed: 1100 RPM
CPU temp over ambient: 57c
SPL: 22.5 dBA
“Quiet growl.â€

Results on the Megahalems 12v, tandem (two fans):

Speed: 2540 RPM (average)
CPU temp over ambient: 49c
SPL: 44.5 dBA

Results on the Megahalems 5v, tandem (two fans):

Speed: 1100 RPM (average)
CPU temp over ambient: 56c
SPL: 22.5 dBA
“Like an old-fashioned power station, but quiet.â€

---------------------------------------

San Ace 9G1212E1011

Should be a better fan, right? The 3000-RPM-class fans by other manufacturers really crank. This one is ribless, BTW.


Image: San Ace 9G1212E1011, exhaust view


Image: San Ace 9G1212E1011, intake view

Link: http://db.sanyodenki.co.jp/product_d...master_id=2449

San Ace 9G1212E1011 Specs:

Size: 120x38mm, 7 blades
Bearing: ball
Speed: 3100 RPM
Airflow: 118 CFM
SPL: 46 dBA
Static Pressure: 10.2 mm H2O

Results on the Megahalems 12v (average):

Speed: 2850 RPM
CPU temp over ambient: 49.5c
SPL: 44 dBA

A half degree centigrade better than a 9G1212H101, at a cost of 4 dBA.

Results on the Megahalems 5v:

Speed: 1250 RPM
CPU temp over ambient: 55.5c
SPL: 23.5 dBA
“Quiet growl.â€

-------------------------------------

San Ace 9G1212G101


Image: San Ace 9G1212G101, exhaust view


Image: San Ace 9G1212G101, intake view

Link: http://db.sanyodenki.co.jp/product_d...master_id=2466

San Ace 9G1212G101 Specs:

Size: 120x38mm, 7 blades
Bearing: ball
Speed: 3600 RPM
Airflow: 137 CFM
SPL: 49 dBA
Static Pressure: 13.8 mm H2O

Results on the Megahalems 12v (average):

Speed: 3400 RPM
CPU temp over ambient: 48.5c
SPL: 45.5 dBA

A whole degree centigrade better than a 9G1212H101, at a cost of 9 dBA.

Results on the Megahalems 5v:

Speed: 1600 RPM
CPU temp over ambient: 53.5c
SPL: 27 dBA
“Quiet growl.â€

--------------------------------------------

In conclusion, the 9G1212H1011 seems to be the apex of the San Ace 38mm fans. Faster fans just give you more noise and not much better cooling. I wonder if various blade shapes have optimal RPM’s?
-------------------------------------

120x25mm “Silent†fans.

San Ace 9S1212L401

This is one of Sanyo Denki’s “Silent†San Aces. The 4 in -401 stands for a 25mm thick fan.


Image: San Ace 9S1212L401, intake & exhaust views

Actually, this is a 9S1212F401 posing as a 9S1212L401 showing its intake side. On the exhaust side is the 9S1212L401.

Link: http://db.sanyodenki.co.jp/product_d...master_id=2018

San Ace 9S1212L401 Specs:

Size: 120x25mm, 7 blades
Bearing: ball
Speed: 1500 RPM
Airflow: 48.1 CFM
SPL: 17 dBA
Static Pressure: 1.5 mm H2O

Results on the Megahalems 12v (average):

Speed: 1420 RPM
CPU temp over ambient: 55.5c
SPL: 19.5 dBA
“Soft hum.â€

-------------------------------------

San Ace 9S1212F401

This is one of Sanyo Denki’s “Silent†San Aces. I really like this fan. I like it so much that when the 9S1212H401 became available, I bought two of those.


Image: San Ace 9S1212F401, intake & exhaust views

Actually, this is a 9S1212L401 posing as a 9S1212F401, showing its intake side. On the exhaust side is the 9S1212F401.

Link: http://db.sanyodenki.co.jp/product_d...master_id=2016

San Ace 9S1212F401 Specs:

Size: 120x25mm, 7 blades
Bearing: ball
Speed: 2200 RPM
Airflow: 70.6 CFM
SPL: 30 dBA
Static Pressure: 3 mm H2O
Note: There is a 9S1212M401 with specs between the -L and the -F.

Results on the Megahalems 12v (average):

Speed: 2050 RPM
CPU temp over ambient: 53.5c
SPL: 30 dBA
“Soft moan.â€

-------------------------------------

San Ace 9S1212H401

This “Silent†San Ace is not in Sanyo Denki’s online catalog. But I bought two of them. They seemed like just the right fan: after listening to how sweetly the slower 9S fans sang, I thought this fan might have a sweet sound and be able to get my CPU down to 50c over ambient.


Image: San Ace 9S1212H401, intake & exhaust views

Here are two genuine 9S1212H401’s, showing intake and exhaust sides.

Links: http://www.newark.com/pdfs/datasheet...1212H401_A.pdf
http://www.newark.com/sanyo-denki/9s...fan/dp/04R7277
A link direct from Sanyo Denki: http://db.sanyodenki.co.jp/product_d...1270530583.pdf

San Ace 9S1212H401 Specs:

Size: 120x25mm, 7 blades
Bearing: ball
Speed: 2700 RPM
Airflow: 86.5 CFM
SPL: 36 dBA
Static Pressure: 4.5 mm H2O (estimated from graph)

Results on the Megahalems 12v (average):

Speed: 2430 RPM (average)
CPU temp over ambient: 52.5c
SPL: 34 dBA
“Sings.â€

Results on the Megahalems 5v:

Speed: 1365 RPM
CPU temp over ambient: 56c
SPL: 20 dBA

Results on the Megahalems 12v tandem mount (two fans):

Speed: 2440 RPM (average)
CPU temp over ambient: 51c
SPL: 37.5 dBA
“They quietly sing; very pleasant.â€

This is comparable to a single San Ace 9G1212H101, but quieter.

Results on the Megahalems 5v tandem mount (two fans):

Speed: 1410 RPM (average)
CPU temp over ambient: 53.5c
SPL: 23.5 dBA
“Very close to having two -L401's, except there is a high-pitched whine the -L lacks.†I wasn’t sure where it was from.

-------------------------------------------

Clearly Sanyo Denki knows how to assemble a fan that does not click. Sanyo Denki offers a line of 9G1212x401 fans analogous to the 9G1212x101 series. Want to bet those fans click at low voltage? I wish they made a 9S1212H1011. That would be a nearly perfect fan.

----------------------------------------

San Ace PWM fan

San Ace 9G1212P4G03

I got three of these:


Image: San Ace 9G1212P4G03, intake & exhaust views

Why three? Because I loved the first one so much I decided I wanted to try three of them on a Noctua NH-D14 â€" a heatsink that can accommodate three fans.

San Ace 9G1212P4G03: The P stands for PWM. The 4 stands for a 25mm thick frame. The speed class letter â€" G â€" is moved over one place on PWM fans. I am not sure what the -3 stands for.

The one nice thing about PWM fans is that you can power them from Molex. Since these fans can draw up to 0.9 Amp and a MB header will let you draw only up to 1 Amp, you clearly need the extra current from somewhere. Akasa, for example, makes a PWM harness that controls up to three fans from a single PWM signal, yet draws its power from Molex so the MB header is not overdrawn.

Links: http://www.newark.com/pdfs/datasheet...212P4G03_A.pdf
http://www.newark.com/sanyo-denki/9g...fan/dp/03P9398

San Ace 9G1212P4G03 Specs:

Size: 120x25mm, 7 blades
Bearing: ball
Speed: 1000 to 4100 RPM (0-100% PWM duty cycle)
Airflow: 32 to 130 CFM (0-100% PWM duty cycle, estimated from graph)
SPL: 18 to 51 dBA (0-100% PWM duty cycle)
Static Pressure: 1.0 to 12.2 mm H2O (0-100% PWM duty cycle, estimated from graph)
Note: The distributor lists max airflow as 129.94 CFM.
Note: Each fan draws up to 0.9 Amp.

Results on the Megahalems 12v (average of all three fans):

Speed: 3900 RPM
CPU temp over ambient: 49.5c
SPL: 48 dBA

Results on the Megahalems 12v, tandem mount (two fans):

RPM: 3990 (average)
CPU temp over ambient: 48c
SPL: 52 dBA
The input fan was on the MB header, the exhaust fan on Molex.

Results on the Megahalems 5v:

Speed: 1975 RPM (how’s that for 5 volts!)
CPU temp over ambient: 53c
SPL: 30.5 dBA

This would be a great fan all by itself, and only 5 volts. You could run it from USB.

Results on the Megahalems 5v, tandem mount (two fans):

Speed: 2030 RPM (average)
CPU temp over ambient: 52c
SPL: 35.5 dBA
 

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Discussion Starter · #26 ·
Scythe

Their fans come in pretty boxes. They have adapters that allow you to power the fans from Molex and still report the RPM's to the MB. They even sell PWM fans. Even if they don't make their own fans, they seem to know what they're doing.

Scythe 120x25mm fans

AD1212DS-A73GL(6TCL3)

This fan used to equip some of Scythe's heatsinks like the Ninja Plus and other coolers. It doesn't seem to be available as a separate purchasable item. This came to me in my grab bag.


Image: Scythe AD1212DS-A73GL(6TCL3) exhaust view


Image: Scythe AD1212DS-A73GL(6TCL3) intake view

Specs:

Size: 120x25mm, 7 blades
Bearing: sleeve
Speed: 1200 RPM
Airflow: 46 CFM
SPL: 23.5 dBA
Static Pressure: na

Results on the Megahalems 12v:

Speed: 1200 RPM
CPU temp over ambient: 56c
SPL: 23.5 dBA
(bizarre coincidence, eh?)

------------------------------------------------------

Scythe Slip Stream, Kaze Jyuni

Slip Stream is a series of five fans: 500, 800, 1200, 1600 and 1900 RPM. I tested the three stronger fans.


Image: Scythe Slipstream 1200 intake and exhaust views


Image: Scythe Slipstream 1600 intake and exhaust views


Image: Scythe Slipstream 1900 exhaust view


Image: Scythe Slipstream 1900 intake view


Image: Scythe Slipstream 1900 blade angle

These fans are case fans, with a relatively large CFM in free air, but not much static pressure. That means that when these fans are placed against an obstruction like a radiator they are unable to push much air through. But is the Megahalems like a radiator?

Link: http://www.scythe-usa.com/product/ac...sl_detail.html

Scythe Slip Stream 1200 Specs:

Size: 120x25mm, 9 blades
Bearing: sleeve
Speed: 1200 RPM
Airflow: 68.54 CFM
SPL: 24 dBA
Static Pressure: na
Feature: 3-pin to 4pin adapter included; the adapter includes an RPM reporting lead.

Results on the Megahalems 12v:

Speed: 1325 RPM (average)
CPU temp over ambient: 56c
SPL: 26 dBA
"Just the wind!" a great sounding fan.

Results on the Megahalems 12v, tandem mount (two fans):

Speed: 1220 RPM (average)
CPU temp over ambient: 56c
SPL: 26.5 dBA

-----------------------------------------------------------

Scythe Slip Stream 1600 Specs:

Size: 120x25mm, 9 blades
Bearing: sleeve
Speed: 1600 RPM
Airflow: 88.11 CFM
SPL: 33 dBA
Static Pressure: na
Feature: 3-pin to 4pin adapter included; the adapter includes an RPM reporting lead.

Results on the Megahalems 12v:

Speed: 1750 RPM (average)
CPU temp over ambient: 54.5c
SPL: 34.5 dBA
"Wind noise; like wind in trees." Another great sounding fan.

Results on the Megahalems 12v, tandem mount (two fans):

Speed: 1220 RPM (average)
CPU temp over ambient: 52.5c
SPL: 35 dBA
"Some whine, but unobjectionable."

---------------------------------------------------------

Scythe Slip Stream 1900 Specs:

Size: 120x25mm, 9 blades
Bearing: sleeve
Speed: 1900 RPM
Airflow: 110.31 CFM
SPL: 37 dBA
Static Pressure: na
Feature: 3-pin to 4pin adapter included; the adapter includes an RPM reporting lead.

Results on the Megahalems 12v (fan #1):

Speed: 2050 RPM (average)
CPU temp over ambient: 53c
SPL: 37.5 dBA
"Wind noise only; that's all."

Results on the Megahalems 12v (fan #2):

Speed: 1810 RPM
CPU temp over ambient: 54c
SPL: 33.5 dBA
"Wind noise only; that's all."

It's almost like they're different fans.

Results on the Megahalems 12v, tandem mount (two fans):

Speed: 1890 RPM (average)
CPU temp over ambient: 51c
SPL: 39.5 dBA
"Wind and high hum."

A pair that essentially replicates a single San Ace -H101.

Results on the Megahalems 5v, tandem mount (two fans):

Speed: 985 RPM (average)
CPU temp over ambient: fail
SPL: 22 dBA

Oh, well.
 

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Discussion Starter · #27 ·
Scythe Ultra Kaze fans

The Ultra Kaze comes in 1000, 2000 and 3000 RPM variants. I typically abbreviate them as UK1K, UK2K and UK3K.

Link: http://www.scythe-usa.com/product/ac...38_detail.html


Image: Scythe Ultra Kaze 1000, exhaust view


Image: Scythe Ultra Kaze 1000, intake view

Scythe Ultra Kaze 1000 Specs

Size: 120x38mm, 7 blades
Bearing: sleeve
Speed: 1000 RPM
Airflow: 44.44 CFM
SPL: 19.81 dBA
Static Pressure: na
Feature: 3-pin to 4pin adapter included; the adapter includes an RPM reporting lead.

Results on the Megahalems 12v:

Speed: 930 RPM
CPU temp over ambient: fail
SPL: 17.5 dBA
"Growls." But quietly.

---------------------------------------------

Scythe Ultra Kaze 2000


Image: Scythe Ultra Kaze 2000, exhaust view


Image: Scythe Ultra Kaze 2000, intake view

Scythe Ultra Kaze 2000 Specs

Size: 120x38mm, 7 blades
Bearing: sleeve
Speed: 2000 RPM
Airflow: 87.63 CFM
SPL: 32.91 dBA
Static Pressure: na
Feature: 3-pin to 4pin adapter included; the adapter includes an RPM reporting lead.

Results on the Megahalems 12v:

Speed: 2000 RPM
CPU temp over ambient: 53c
SPL: 34.5 dBA
"Ordinary hard working fan sound."

Results on the Megahalems 5v:

Speed: 1075 RPM
CPU temp over ambient: 60c
SPL: 20.5 dBA
"Quiet growl."

-------------------------------------------

Scythe Ultra Kaze 3000


Image: Scythe Ultra Kaze 3000 intake and exhaust views


Image: Scythe Ultra Kaze 3000 x 2 on Megahalems

Scythe Ultra Kaze 3000 specs

Size: 120x38mm, 7 blades
Bearing: sleeve
Speed: 3000 RPM
Airflow: 133.60 CFM
SPL: 45.90 dBA
Static Pressure: na
Feature: 3-pin to 4pin adapter included; the adapter includes an RPM reporting lead.

Results on the Megahalems 12v:

Speed: 2840 RPM (average)
CPU temp over ambient: 50c
SPL: 43.5 dBA
"Whine and wind."

It replicates the results of the San Ace 9G1212H101, but it is much noisier subjectively than it is on the SPL meter.

Results on the Megahalems 5v:

Speed: 1285 RPM (average)
CPU temp over ambient: 57c
SPL: 25 dBA
"Quiet growl."

Results on the Megahalems 12v, tandem mount (two fans):

Speed: 2845 RPM (average)
CPU temp over ambient: 49c
SPL: 46.5 dBA
"At 0.6 watts each, should not put two on a mb header."

Results on the Megahalems 5v, tandem mount (two fans):

Speed: 1255 RPM (average)
CPU temp over ambient: 55c
SPL: 28 dBA
"Growls."
 

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Discussion Starter · #28 ·
Scythe 140x25mm fans

Scythe Kaze Maru

Scythe makes a series of 140mm fans that are similar to the Noctua P14 in one regard: they have screw holes in the same position as 120mm fans. That works very well in some circumstances. For example:


Image: 140mm fans on NZXT Beta Evo side panel

Kaze Maru may mean “ship of winds.†These fans come in three flavors: 500 RPM, 1200 RPM and 1900 RPM.

Link: http://www.scythe-usa.com/product/ac...12_detail.html


Image: Scythe Kaze Maru 500 exhaust view


Image: Scythe Kaze Maru 500 intake view

Scythe Kaze Maru 500 Specs

Size: 140x25mm, 11 blades
Bearing: sleeve
Speed: 500 RPM
Airflow: 29.39 CFM
SPL: 10.80 dBA
Static Pressure: na
Feature: 3-pin to 4pin adapter included; the adapter includes an RPM reporting lead.

Results on the Megahalems:

Not tested. It would fail. I use this fan as an intake on my side panel. This is one of the two fans that are closest to me, and the one fan with nothing between it and me but a half meter of air. It is quite quiet.

---------------------------------------------------

Scythe Kaze Maru 1200


Image: Scythe Kaze Maru 1200 exhaust view


Image: Scythe Kaze Maru 1200 intake view

Scythe Kaze Maru 1200 Specs

Size: 140x25mm, 11 blades
Bearing: sleeve
Speed: 1200 RPM
Airflow: 61.30 CFM
SPL: 26.58 dBA
Static Pressure: na
Feature: 3-pin to 4pin adapter included; the adapter includes an RPM reporting lead.

Results on the Megahalems 12v:

Speed: 1115 RPM (average)
CPU temp over ambient: 58c
SPL: 26 dBA
“Low thrum; an easy fan to love.â€

--------------------------------------------

Scythe Kaze Maru 1900


Image: Scythe Kaze Maru 1900 intake and exhaust views

Scythe Kaze Maru 1900 Specs

Size: 140x25mm, 11 blades
Bearing: sleeve
Speed: 1900 RPM
Airflow: 104.54 CFM
SPL: 41.13 dBA (over 40 dB isn’t quiet)
Static Pressure: na
Feature: 3-pin to 4pin adapter included; the adapter includes an RPM reporting lead.

Results on the Megahalems 12v:

Speed: 1820 RPM
CPU temp over ambient: 54c
SPL: 37.5 dBA
“Wind noise and machine noise; not terrible.â€

But note the big jump in SPL. You don’t hear all of it, since much of it is white noise. Still, it ain’t all that quiet. Not like the 1200.

Results on the Megahalems 12v, tandem mount (two fans):

Speed: 1820 RPM
CPU temp over ambient: 52c
SPL: 40 dBA
“Big wind noise and small machine noise; ship of winds, indeed.â€

------------------------------------------------

Scythe Kaze Maru 2

The KM2 is an evolution of the KM design. Read about it here:

Link: http://www.performance-pcs.com/catal...ducts_id=27090


Image: Scythe Kaze Maru 2 1700 exhaust view


Image: Scythe Kaze Maru 2 1700 intake view

Its English name on the box is Slip Stream 140. Does it deserve the name?


Image: Scythe Slipstream and Kaze Maru 2


Image: Scythe Kaze Maru and Kaze Maru 2


Image: Scythe S-Flex and Kaze Maru 2


Image: Noctua P14 and Scythe KM2-1700

Scythe Kaze Maru 2 1700 Specs

Size: 140x25mm, 9 blades
Bearing: sleeve
Speed: 1700 RPM
Airflow: 92.4 CFM
SPL: 36.4 dBA
Static Pressure: na
Feature: 3-pin to 4pin adapter included; the adapter includes an RPM reporting lead.

Results on the Megahalems 12v:

Speed: 1650 RPM
CPU temp over ambient: 52c
SPL: 32 dBA
“Wind noise only; that's all; earns its ‘Slipstream 140’.â€

Same cooling as the Kaze Maru 1900, and much lower noise. A fabulous fan. Clearly Scythe knew what they were about here. I can’t wait to try it on the Noctua NH-D14.

---------------------

Edit:

Even though they did not figure into the Megahlems testing, I will list the specs of the other KM2 fans:

500 rpm, 9.6 dBA, 27.2 cfm
800 rpm, 14.3 dBA, 43.5cfm
1200rpm, 23.2dBA, 65.2cfm
 

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Discussion Starter · #29 ·
Scythe/Nidec-Servo

Scythe Gentle Typhoon

The GT's are remarkable fans. Scythe markets five: 500, 800, 1150, 1450 and 1850 RPM:

Link: http://www.scythe-usa.com/product/ac...ap_detail.html

But these are only the GT's "for low speed applications." Servo only makes them in 1450, 1850 . . . and 2150 RPM.

Link: http://www.japanservo.co.jp/digital/...pdf/D1225C.pdf

Don't you wish Scythe would market that 2150 RPM fan? And then there are the GT's "for high speed applications." Those come with a "unique rectifier ring" that reinforces the blades at the 3000, 4250 and 5400 RPM those fans operate at.

Link: http://catalog.nidec-servo.com/produ...Chi-letter.pdf

Santa, I'd like that 3000 RPM fan. With PWM, if possible.

I have the 800, 1150, 1450 and 1850 RPM fans. When I put on them on fan controllers and synchronized them, they sounded exactly the same and put out the same amount of wind. They feel like the same fan with different resistors.

The 800 RPM fan is so quiet and gentle that I use it for my front-mounted intake fan. This is the closest fan to me, so it has to be quiet yet pull in a useful amount of air. But I did not test it with the Megahalems. Why?

Gentle Typhoon Specs (from the box)

Size: 120x25mm, 9 blades
Bearing: Double ball bearings
Speed: 800 RPM
Airflow: 28.2 CFM
SPL: 9 dBA
Static Pressure: na
Feature: 3-pin to 4pin adapter included; the adapter includes an RPM reporting lead.

It would fail a test at 4GHz, so I left it snuggled into its intake niche, held by some flaming violet Nexus silicon fan holders.

BTW - GT's have closed corners. If you want to get inside the flanges you must cut away the "ribs:"


Image: Gentle Typhoon 1850 before and after

-----------------------------------------------------

On to the GT 1150:


Image: Gentle Typhoon 1150 exhaust view


Image: Gentle Typhoon 1150 intake view

Gentle Typhoon 1150 Specs (from the box)

Size: 120x25mm, 9 blades
Bearing: Double ball bearings
Speed: 1150 RPM
Airflow: 37.1 CFM
SPL: 16 dBA
Static Pressure: na
Feature: 3-pin to 4pin adapter included; the adapter includes an RPM reporting lead.

Results on the Megahalems 12v:

Speed: 1146 RPM
CPU temp over ambient: 59c
SPL: 17.5 dBA

------------------------------------------------------------

GT 1450:


Image: Gentle Typhoon 1450 intake and exhaust views

Gentle Typhoon 1450 Specs

Size: 120x25mm, 9 blades
Bearing: Double ball bearings
Speed: 1450 RPM
Airflow: 50 CFM (from the website) 45.9 (from the box) (Nidec says 46 CFM for theirs)
SPL: 21 dBA, box and website (Nidec says 19 dBA for theirs)
Static Pressure: 1.3 mmH2O (from Nidec)
Feature: 3-pin to 4pin adapter included; the adapter includes an RPM reporting lead.

Results on the Megahalems 12v:

Speed: 1340 RPM
CPU temp over ambient: 56.5c
SPL: 20 dBA

Results on the Megahalems 12v, tandem mount (two fans):

Speed: 1380 RPM (average)
CPU temp over ambient: 54.5c
SPL: 21.5 dBA

------------------------------------------

GT 1850


Image: Gentle Typhoon 1850 intake and exhaust views

Gentle Typhoon 1850 Specs

Size: 120x25mm, 9 blades
Bearing: Double ball bearings
Speed: 1850 RPM
Airflow: 57.7 CFM from the website, 58.3 CFM from the box (Nidec says 58 CFM for theirs)
SPL: 28 dBA box and website (Nidec says 30 dBA for theirs)
Static Pressure: 2.9 mmH2O (from Nidec)
Feature: 3-pin to 4pin adapter included; the adapter includes an RPM reporting lead.

Results on the Megahalems 12v:

Speed: 1760 RPM (average)
CPU temp over ambient: 54.5c
SPL: 26.5 dBA

Results on the Megahalems 12v, tandem mount (two fans):

Speed: 1775 RPM (average)
CPU temp over ambient: 53.5c
SPL: 29 dBA

No clicking on any of these fans at any voltage.
 

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Discussion Starter · #30 ·
Silverstone FN121

I read a number of comments about what a good fan this is, so I got one.

Link: http://www.silverstonetek.com/produc...fn121&area=usa


Image: Silverstone FN-121 exhaust view

What an annoying fan! Note those Molex connectors. Then note that the three-pin connector only has a yellow RPM reporting line. Yes, this fan only gets its power through Molex. If you want to power it through a mb header you will have to get an adapter. I guess this is a big hint that Silverstone considers this to be a case fan only.

Also note that this fan is apparently made by Everflow.


Image: Silverstone FN-121 intake view

Comparing this fan with the NZXT case fan, it appears that though the frames differ, the blades are the same. Are the results comparable?

Specs

Size: 120x25mm, 9 blades
Bearing: na
Speed: 1200 RPM
Airflow: 53.24 CFM
SPL: 26.6 dBA
Static Pressure: 0.91 mmH2O
Feature:

Results on the Megahalems 12v:

Speed: 1185 RPM (average)
CPU temp over ambient: 57c
SPL: 25 dBA
"Quiet hum."
 

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Discussion Starter · #31 ·
Sony Fluid Dynamic Bearings (FDB) on Scythe and Thermalright fans

Both Scythe and Thermalright advertise Fluid dynamic bearings on some of their fans. With Scythe, the fans are S-Flex. With TR, they are TR-FDB series.

Links: http://www.scythe-usa.com/product/ac...ex_detail.html
http://www.thermalright.com/new_a_pa...r_fdb_fan.html

To me, these fans look to be at least siblings, if not quite identical:


Image: TR-FDB vs S-Flex - intake view


Image: TR-FDB vs S-Flex blades


Image: S-Flex blades in front of TR-FDB blades


Image: S-Flex corner in front of TR-FDB


Image: S-Flex in front of TR-FDB

This last pic shows that the injection ports on the frame molds are not in the same place. Otherwise, because these fans are so similar I have tested them together. The players:

------------------------------------------

Scythe S-Flex SFF21E


Image: Scythe S-Flex SFF21E exhaust view


Image: Scythe S-Flex SFF21E intake view

Scythe S-Flex SFF21E Specs

Size: 120x25mm, 7 blades
Bearing: Sony Fluid Dynamic Bearings
Speed: 1200 RPM
Airflow: 49.0 CFM
SPL: 20.1 dBA
Static Pressure: na
Feature: 3-pin to 4pin adapter included; the adapter includes an RPM reporting lead.

Results on the Megahalems 12v:

Speed: 1190 RPM
CPU temp over ambient: 57c
SPL: 23 dBA

-----------------------------------------

Scythe S-Flex SFF21F


Image: Scythe S-Flex SFF21F exhaust view


Image: Scythe S-Flex SFF21F intake view

Scythe S-Flex SFF21F Specs

Size: 120x25mm, 7 blades
Bearing: Sony Fluid Dynamic Bearings
Speed: 1600 RPM
Airflow: 63.7 CFM
SPL: 28.0 dBA
Static Pressure: na
Feature: 3-pin to 4pin adapter included; the adapter includes an RPM reporting lead.

Results on the Megahalems 12v:

Speed: 1440 RPM (average)
CPU temp over ambient: 56c
SPL: 26.5 dBA

----------------------------------------------------------

Scythe S-Flex SFF21G


Image: Scythe S-Flex SFF21G exhaust view


Image: Scythe S-Flex SFF21G intake view

Scythe S-Flex SFF21G Specs

Size: 120x25mm, 7 blades
Bearing: Sony Fluid Dynamic Bearings
Speed: 1900 RPM
Airflow: 75.0 CFM
SPL: 34.0 dBA
Static Pressure: na
Feature: 3-pin to 4pin adapter included; the adapter includes an RPM reporting lead.

Results on the Megahalems 12v:

Speed: 1840 RPM (average)
CPU temp over ambient: 52.5c
SPL: 32.5 dBA

------------------------------------------------

Thermalright TR-FDB-12-1300


Image: Thermalright TR-FDB-12-1300 exhaust view


Image: Thermalright TR-FDB-12-1300 intake view

Thermalright TR-FDB-12-1300 Specs

Size: 120x25mm, 7 blades
Bearing: Sony Fluid Dynamic Bearings
Speed: 1300 RPM
Airflow: 50.0 CFM
SPL: 24.1 dBA
Static Pressure: na
Feature: 3-pin to 4pin adapter included; the adapter includes an RPM reporting lead.

Results on the Megahalems 12v:

Speed: 1355 RPM (average)
CPU temp over ambient: 56c
SPL: 24.5 dBA

--------------------------------------------------------

Since the fans were so similar, I did some tandem testing, taking the Thermalright and one of the S-Flexes and putting them in various combinations. Part of the reason was that I wanted to see what difference it would make to temps with different output fans - higher as intake vs higher as exhaust. Nothing terribly profound, just checkin' things out.

S-Flex 1200 > TR-FDB-1300

Speed: 1210 > 1375 RPM
CPU temp over ambient: 56c
SPL: 28 dBA

TR-FDB-1300 > S-Flex-1200

Speed: 1350 > 1225 RPM
CPU temp over ambient: 54c
SPL: 28 dBA
"Annoying buzz"

S-Flex 1600 > TR-FDB-1300

Speed: 1500 > 1360 RPM
CPU temp over ambient: 55c
SPL: 31 dBA
"Annoying whine."

TR-FDB-1300 > S-Flex-1600

Speed: 1360 > 1510 RPM
CPU temp over ambient: 55c
SPL: 32.5 dBA
"Annoying buzz"

Not a terribly promising approach. I'm not event tempted to try matched S-Flexes or matched TR-FDB's.
 

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Discussion Starter · #32 ·
Thermalright

X-Silent 140

One of my very favorite fans. Quiet. Easy on the ears. Nice amount of air. The only drawback: pointing the output upward makes it vibrate, as if it is struggling. But mounted any other way it is wonderful.

Link: http://www.thermalright.com/new_a_pa...ilent-140.html


Image: Thermalright X-Silent 140 exhaust view


Image: Thermalright X-Silent 140 intake view

Specs

Size: 140x25mm, 11 blades
Bearing: Liquid state bearing
Speed: 900 RPM
Airflow: 60.42 CFM
SPL: 20.9 dBA
Static Pressure: na

Results on the Megahalems 12v:

Speed: 888 RPM
CPU temp over ambient: fail
SPL: 19.5 dBA
"Very quiet hum." Clearly, only for case fan use.
 

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Discussion Starter · #33 ·
Thermaltake

A2018

Well! After getting this relatively inexpensive fan, I just had to get another. This despite the fact that the first one of these drew blood - a lot of blood - when it bit my finger.

The A2018 comes with a high-quality slot-mounted speed control as well as a thermal sensor for thermal speed control. It has the highest range of all my fans for RPM from 5 volts to 12 volts.

Link: http://www.thermaltakeusa.com/Produc...4&ID=1725#Tab0


Image: Thermaltake A2018 fans with speed control

Thermaltake A2018 Specs

Size: 120x25mm, 7 blades
Bearing: One Ball, one Sleeve
Speed: 1300 to 2800 RPM
Airflow: 38.6 to 93.7 CFM
SPL: 17 to 46.5 dBA
Static Pressure: 1.5 - 4.1 mmH2O
Features: Thermal and manual speed controls. Very pretty LED's

Results on the Megahalems 12v:

Speed: 2800 RPM (average)
CPU temp over ambient: 51.5c
SPL: 43 dBA
"One ferocious fan."


Image: Thermaltake A2018 x 2 on Megahalems

Results on the Megahalems 12v, tandem mount (two fans):

Speed: 2870 RPM (average)
CPU temp over ambient: 49.5c
SPL: 47 dBA
"Two ferocious fans."

Note that the pair beat a San Ace -H101 in temp, but boy are they noisy.
Looking carefully at the frame and the specs, the fan part looks like it might be a Yate Loon D12BH-12, but with just a bit more juice.


Image: Yate Loon D12SH-12 vs Thermaltake FD12025 exhaust views


Image: Yate Loon D12SH-12 vs Thermaltake FD12025 intake views

Link: http://www.yateloon.com/style/conten...=8511&id=38837

Thermaltake A2018 Results on the Megahalems 5v:

Speed: 473 RPM
CPU temp over ambient: fail
SPL: 12.5 dBA
"Faint clicking." I'm shocked I could hear that. I had to get really close.

Results on the Megahalems 5v, tandem mount (two fans):

Speed: 445 RPM (average)
CPU temp over ambient: fail
SPL: 15 dBA

Clearly, the manual fan control does not get down to 5v.
 

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Discussion Starter · #34 ·
Yate Loon

Is it a genuine Yate Loon or a fake Yate loon? Controversies all over the place. A lot of controversy for some of the most consistently inexpensive fans out there. On the other hand, at full voltage YL's are some of the most consistently good fans out there. Undervolted, they tend to click. YMMV.

BTW - Most YL fans have closed corners.

Let's start with 140mm fans:

Link: http://www.yateloon.com/style/conten...=8511&id=38839

Yate Loon D14SM-12


Image: Yate Loon D14SM-12 exhaust view


Image: Yate Loon D14SM-12 intake view

Yate Loon D14SM-12 Specs

Size: 140x25mm, 7 blades
Bearing: Sleeve
Speed: 1400 RPM
Airflow: 62 CFM
SPL: 29 dBA
Static Pressure: na

Results on the Megahalems 12v:

Speed: 1250 RPM
CPU temp over ambient: 57c
SPL: 27 dBA
"Soft"

------------------------------------------------------------

Yate Loon D14SH-12


Image: Yate Loon D14SH-12 exhaust view


Image: Yate Loon D14SH-12 intake view

Yate Loon D14SH-12 Specs

Size: 140x25mm, 7 blades
Bearing: Sleeve
Speed: 2800 RPM
Airflow: 140 CFM
SPL: 48.5 dBA
Static Pressure: na

Results on the Megahalems 12v:

Speed: 1900 RPM
CPU temp over ambient: 55.5c
SPL: 34 dBA
"Soft high hum."

I think I'd like to see that 2800 RPM 140mm fan. It would be quite something. But I'm guessing it's a typo, and the spec is really 1800 RPM. As it is, this 1900 RPM fan does not cool as well as either the Kaze Maru 1900 or the Kaze Maru 1700, and it's a bit noisier than the KM2-1700. The blade count seems to make a difference here.

-------------------------------------------------------------
Yate Loon D12SL-12

Yate Loon D12SL-12, black


Yate Loon D12SL-12 fan, exhaust view


Yate Loon D12SL-12 fan, intake view

Note those dimples flanking the screw holes. Looks an awful lot like a Nexus D12SL-12 Real Silent fan, eh?

Link: http://www.yateloon.com/style/conten...=8511&id=38837

Yate Loon D12SL-12 Specs

Size: 120x25mm, 7 blades
Bearing: Sleeve
Speed: 1350 RPM
Airflow: 47 CFM
SPL: 28 dBA
Static Pressure: na

Results on the Megahalems 12v:

Speed: 1310 RPM
CPU temp over ambient: 58c
SPL: 23 dBA
"Quiet fast clicking."

Hmm. It appears that YL can put quiet electronics into a client's fan, but they don't do it for their own brand.
----------------------------------------------

Yate Loon D12SL-12, blue LED's


Yate Loon D12SL-12 LED fan, exhaust view


Yate Loon D12SL-12 LED fan, intake view

Very pretty, but the blade shape resembles the D14Sx-12's, not the other D12SL-12 or the other D12S's.

Link: http://www.yateloon.com/style/conten...=8511&id=38837

Yate Loon D12SL-12 Specs

Size: 120x25mm, 7 blades
Bearing: Sleeve
Speed: 1350 RPM
Airflow: 47 CFM
SPL: 28 dBA
Static Pressure: na

Results on the Megahalems 12v:

Speed: 1220 RPM
CPU temp over ambient: 56.5c
SPL: 20 dBA
"Quiet fast clicking; mostly a quiet hum."

Better results than the black fan, despite that fan's higher RPM. Blade shape?

Results on the Megahalems 12v, tandem mount (two fans)
(black intake, LED exhaust):

Speed: 1270 RPM, average
CPU temp over ambient: 56.5c
SPL: 24.5 dBA

----------------------------------------------------------

Yate Loon D12SH-12

This is the fan that some reviewers dote on. I got three of them, one from Petra's Tech Shop, one from Jab-Tech and one from Modders Mart.


Yate Loon D12SH-12 1002 exhaust view


Yate Loon D12SH-12 1002 intake view

Link: http://www.yateloon.com/style/conten...=8511&id=38837

Yate Loon D12SH-12 Specs

Size: 120x25mm, 7 blades
Bearing: Sleeve
Speed: 2200 RPM
Airflow: 88 CFM
SPL: 40 dBA
Static Pressure: na

Results on the Megahalems 12v:

Speed: 1990 RPM (average)
CPU temp over ambient: 53.5c
SPL: 34 dBA
"Fan humming."

Results on the Megahalems 12v, tandem mount (two fans):

Speed: 2000 RPM (average)
CPU temp over ambient: 50.5c
SPL: 37.5 dBA
"Two fans humming; pleasant; doesn't sound as loud as it measures."

Here is a pair of fans that matches a single San Ace -H101 for temp, and beats it for noise. These fans can be had for $3.70 each. If you buy three or more, you can get them for $3.30 each. - Link: http://www.jab-tech.com/YATE-LOON-12...d-pr-3771.html - I can't tell the difference in quality, so I won't pay more. I figure I can buy a bunch, and then if they wear out replace them.

Yate Loon D12SH-12 Results on the Megahalems 5v:

Speed: 1100 RPM (average)
CPU temp over ambient: 59.5c
SPL: 20 dBA

Results on the Megahalems 5v, tandem mount (two fans):

Speed: 1045 RPM (average)
CPU temp over ambient: 58c
SPL: 20 dBA
 

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Discussion Starter · #35 ·
Zalman

ZM-F3

Many good words about this fan. I got one, liked it, got another.


Image: Zalman ZM-F3 intake and exhaust views

Link: http://www.zalman.com/ENG/product/Pr...ad.asp?idx=200

Zalman ZM-F3 Specs

Size: 120x25mm, 7 blades
Bearing: Sleeve
Speed: 1800 RPM
Airflow: na CFM
SPL: 34.0 dBA
Static Pressure: na
Features: comes with four excellent gray-white silicon vibration isolators ("rubber screws") and a 9v connector to reduce the speed to 900 RPM.

Results on the Megahalems 12v:

Speed: 1720 RPM (average)
CPU temp over ambient: 54c
SPL: 30 dBA
"Soft, pleasant."

Results on the Megahalems 12v, tandem mount (two fans):

Speed: 1765 RPM (average)
CPU temp over ambient: 53.5c
SPL: 33 dBA
"Machines at work."
 

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I think I am going to cry....this might be the best review on the freakin planet.....I'm also a bit scared, because you must have alot of time on your hands to conduct such an amazing review. +rep x
 

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Holy crap. +1, definitely. This really needs to be linked to in Shadowclock's guide. I think, and this may be a tall order, it's worth repeating the thermal tests on the new Armageddon, and the TRUE Rev.A, if you can get them, to show just how well the fans that are known for producing good static pressure really perform. Also, as noted, it's more than worth including Noiseblockers in the tests, too.
 
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